Nope--unfortunately not. Some colleges offer their entire catalog as open courseware--MIT is a good example; here's their site: http://ocw.mit.edu/OcwWeb/web/home/home/index.htm --but even if you take all the classes listed as requirements for a degree, MIT still won't give you one unless you actually pay up and take their classes officially.

In general, open course ware isn't much of an option if you're looking for a credential or a degree. It's better for people who just want to learn something for its own sake or who don't need a degree--just practical knowledge.